That tells me there might very well be billions of galaxies out there, who knows how many quadrillion stars exist? If 1% have Earth-like worlds and 1% of those have some sort of life and 1% of those have a world capable of supporting cmoplex, intelligent life....
wow.... its still a huge number.
almost all the stars in the galaxy center is unsuitable for life because there are too many collisions going on.
plus, we know the dinosaurs were around for about 300 million years and never developed technology so it is a good bet that it takes life more than 300 million years of habitable conditions to develope it.
I suspect that we are nearly unique in the milky way for having technology. There might be 1 or 2 others at most.